Tor-An, in the comics, served under General Zod and was sent to the Phantom Zone as well. When they all escaped, Zod's second in command, Ursa (Faora in the movie) assigned Tor-An as a sleeper agent on Earth.

It's interesting to note the description of the LEGO as it reads "Battle of Smallville" and we know from previous set images from Plano, Illinois, that there featured an actor that fans dub "Mo-Cap" Man.

Whether Mo-Cap Man is Tor-An remains to be seen as it appears Mo-Cap Man represents someone - or something - that towers over Superman.